1 files changed, 364 insertions, 0 deletions
diff --git a/qtjava/javalib/examples/helpviewer/HelpWindow.java b/qtjava/javalib/examples/helpviewer/HelpWindow.java
new file mode 100644
index 00000000..abec33e1
--- /dev/null
+++ b/qtjava/javalib/examples/helpviewer/HelpWindow.java
@@ -0,0 +1,364 @@
+/***************************************************************************
+* $Id$
+**
+* Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
+**
+* This file is part of an example program for Qt.  This example
+* program may be used, distributed and modified without limitation.
+**
+****************************************************************************/
+import org.kde.qt.*;
+import java.util.*;
+
+
+class HelpWindow extends QMainWindow
+{
+private   QTextBrowser browser;
+private   QComboBox pathCombo;
+private   int backwardId, forwardId;
+private   String selectedURL;
+private   ArrayList history = new ArrayList();
+private   ArrayList bookmarks = new ArrayList();
+private   HashMap mHistory = new HashMap();
+private   HashMap mBookmarks = new HashMap();
+private   QPopupMenu hist, bookm;
+
+
+
+
+HelpWindow( String home_, String _path )
+{
+	this(home_, _path, null, null);
+}
+
+HelpWindow( String home_, String _path,
+			QWidget parent, String name )
+{
+    super( parent, name, WDestructiveClose );
+    readHistory();
+    readBookmarks();
+
+    browser = new QTextBrowser( this );
+
+    browser.mimeSourceFactory().setFilePath( new String[] { _path } );
+    browser.setFrameStyle( QFrame.Panel | QFrame.Sunken );
+    connect( browser, SIGNAL(" textChanged()"),
+	     this, SLOT(" textChanged()") );
+
+    setCentralWidget( browser );
+
+    if ( !home_.equals("") )
+	browser.setSource( home_ );
+
+    connect( browser, SIGNAL(" highlighted( String)"),
+	     statusBar(), SLOT(" message( String)") );
+
+    resize( 640,700 );
+
+    QPopupMenu file = new QPopupMenu( this );
+    file.insertItem( tr("&New Window"), this, SLOT(" newWindow()"), new QKeySequence(CTRL+Key_N) );
+    file.insertItem( tr("&Open File"), this, SLOT(" openFile()"), new QKeySequence(CTRL+Key_O) );
+    file.insertItem( tr("&Print"), this, SLOT(" print()"), new QKeySequence(CTRL+Key_P) );
+    file.insertSeparator();
+    file.insertItem( tr("&Close"), this, SLOT(" close()"), new QKeySequence(CTRL+Key_Q) );
+    file.insertItem( tr("E&xit"), qApp(), SLOT(" closeAllWindows()"), new QKeySequence(CTRL+Key_X) );
+
+    // The same three icons are used twice each.
+    QIconSet icon_back = new QIconSet( new QPixmap("back.xpm") );
+    QIconSet icon_forward = new QIconSet( new QPixmap("forward.xpm") );
+    QIconSet icon_home = new QIconSet( new QPixmap("home.xpm") );
+
+    QPopupMenu go = new QPopupMenu( this );
+    backwardId = go.insertItem( icon_back,
+				 tr("&Backward"), browser, SLOT(" backward()"),
+				 new QKeySequence(CTRL+Key_Left) );
+    forwardId = go.insertItem( icon_forward,
+				tr("&Forward"), browser, SLOT(" forward()"),
+				new QKeySequence(CTRL+Key_Right) );
+    go.insertItem( icon_home, tr("&Home"), browser, SLOT(" home()") );
+
+    QPopupMenu help = new QPopupMenu( this );
+    help.insertItem( tr("&About ..."), this, SLOT(" about()") );
+    help.insertItem( tr("About &Qt ..."), this, SLOT(" aboutQt()") );
+
+    hist = new QPopupMenu( this );
+    Iterator it = history.iterator();
+	while (it.hasNext()) {
+		String item = (String) it.next();
+		mHistory.put(new Integer(hist.insertItem( item )), item);
+	}
+    connect( hist, SIGNAL(" activated( int )"),
+	     this, SLOT(" histChosen( int )") );
+
+    bookm = new QPopupMenu( this );
+    bookm.insertItem( tr( "Add Bookmark" ), this, SLOT(" addBookmark()") );
+    bookm.insertSeparator();
+
+    Iterator it2 = bookmarks.iterator();
+	while (it2.hasNext()) {
+		String item = (String) it2.next();
+	    mBookmarks.put(new Integer(bookm.insertItem( item )), item);
+	}
+    connect( bookm, SIGNAL(" activated( int )"),
+	     this, SLOT(" bookmChosen( int )") );
+
+    menuBar().insertItem( tr("&File"), file );
+    menuBar().insertItem( tr("&Go"), go );
+    menuBar().insertItem( tr( "History" ), hist );
+    menuBar().insertItem( tr( "Bookmarks" ), bookm );
+    menuBar().insertSeparator();
+    menuBar().insertItem( tr("&Help"), help );
+
+    menuBar().setItemEnabled( forwardId, false);
+    menuBar().setItemEnabled( backwardId, false);
+    connect( browser, SIGNAL(" backwardAvailable( boolean )"),
+	     this, SLOT(" setBackwardAvailable( boolean )") );
+    connect( browser, SIGNAL(" forwardAvailable( boolean )"),
+	     this, SLOT(" setForwardAvailable( boolean )") );
+
+
+    QToolBar toolbar = new QToolBar( this );
+    addToolBar( toolbar, "Toolbar");
+    QToolButton button;
+
+    button = new QToolButton( icon_back, tr("Backward"), "", browser, SLOT("backward()"), toolbar );
+    connect( browser, SIGNAL(" backwardAvailable(boolean)"), button, SLOT(" setEnabled(boolean)") );
+    button.setEnabled( false );
+    button = new QToolButton( icon_forward, tr("Forward"), "", browser, SLOT("forward()"), toolbar );
+    connect( browser, SIGNAL(" forwardAvailable(boolean)"), button, SLOT(" setEnabled(boolean)") );
+    button.setEnabled( false );
+    button = new QToolButton( icon_home, tr("Home"), "", browser, SLOT("home()"), toolbar );
+
+    toolbar.addSeparator();
+
+    pathCombo = new QComboBox( true, toolbar );
+    connect( pathCombo, SIGNAL(" activated( String )"),
+	     this, SLOT(" pathSelected( String )") );
+    toolbar.setStretchableWidget( pathCombo );
+    setRightJustification( true );
+    setDockEnabled( DockLeft, false );
+    setDockEnabled( DockRight, false );
+
+    pathCombo.insertItem( home_ );
+    browser.setFocus();
+
+}
+
+
+void setBackwardAvailable( boolean b)
+{
+    menuBar().setItemEnabled( backwardId, b);
+}
+
+void setForwardAvailable( boolean b)
+{
+    menuBar().setItemEnabled( forwardId, b);
+}
+
+
+void textChanged()
+{
+    if ( browser.documentTitle() == null ) {
+	setCaption( "Qt Example - Helpviewer - " + browser.context() );
+	selectedURL = browser.context();
+    }
+    else {
+	setCaption( "Qt Example - Helpviewer - " + browser.documentTitle() ) ;
+	selectedURL = browser.documentTitle();
+    }
+
+    if ( !selectedURL.equals("") && pathCombo != null ) {
+	boolean exists = false;
+	int i;
+	for ( i = 0; i < pathCombo.count(); ++i ) {
+	    if ( pathCombo.text( i ) == selectedURL ) {
+		exists = true;
+		break;
+	    }
+	}
+	if ( !exists ) {
+	    pathCombo.insertItem( selectedURL, 0 );
+	    pathCombo.setCurrentItem( 0 );
+	    mHistory.put( new Integer(hist.insertItem( selectedURL )), selectedURL);
+	} else
+	    pathCombo.setCurrentItem( i );
+	selectedURL = null;
+    }
+}
+
+public void cleanUp()
+{
+    history.clear();
+	Iterator it = mHistory.values().iterator();
+	while (it.hasNext())
+	    history.add(it.next());
+
+    QFile f = new QFile( QDir.currentDirPath() + "/.history" );
+    f.open( QIODevice.IO_WriteOnly );
+    QTextStream t = new QTextStream( f );
+	Iterator it1 = history.iterator();
+	while (it1.hasNext()) {
+		String item = (String) it1.next();
+		t.writeRawBytes( item, item.length() );
+		t.writeRawBytes( "\n", 1 );
+	}
+    f.close();
+
+    bookmarks.clear();
+	Iterator it3 = mBookmarks.values().iterator();
+	while (it3.hasNext())
+	    bookmarks.add(it3.next());
+
+    QFile f2 = new QFile( QDir.currentDirPath() + "/.bookmarks" );
+    f2.open( QIODevice.IO_WriteOnly );
+    QTextStream t2 = new QTextStream( f2 );
+	Iterator it2 = bookmarks.iterator();
+	while (it2.hasNext()) {
+		String item = (String) it2.next();
+		t2.writeRawBytes( item, item.length() );
+		t2.writeRawBytes( "\n", 1 );
+	}
+    f2.close();
+}
+
+
+void about()
+{
+    QMessageBox.about( this, "HelpViewer Example",
+			"<p>This example implements a simple HTML help viewer "
+			+ "using Qt's rich text capabilities</p>"
+			+ "<p>It's just about 100 lines of Java code, so don't expect too much :-)</p>"
+			);
+}
+
+
+void aboutQt()
+{
+    QMessageBox.aboutQt( this, "QBrowser" );
+}
+
+void openFile()
+{
+    String fn = QFileDialog.getOpenFileName( "", "", this );
+    if ( !fn.equals("") )
+	browser.setSource( fn );
+}
+
+void newWindow()
+{
+    ( new HelpWindow(browser.source(), "qbrowser") ).show();
+}
+
+void print()
+{
+    QPrinter printer = new QPrinter();//(QPrinter.HighResolution );
+    printer.setFullPage(true);
+    if ( printer.setup( this ) ) {
+	QPainter p = new QPainter( printer );
+	QPaintDeviceMetrics metrics = new QPaintDeviceMetrics(p.device());
+	int dpix = metrics.logicalDpiX();
+	int dpiy = metrics.logicalDpiY();
+	int margin = 72; // pt
+	QRect body = new QRect(margin*dpix/72, margin*dpiy/72,
+		   metrics.width()-margin*dpix/72*2,
+		   metrics.height()-margin*dpiy/72*2 );
+	QFont font = new QFont("times", 10);
+	ArrayList filePaths = browser.mimeSourceFactory().filePath();
+	String file = "";
+	Iterator it = filePaths.iterator();
+	while (it.hasNext()) {
+	    file = new QUrl( new QUrl((String) it.next()), new QUrl( browser.source() ).path() ).path();
+	    if ( QFile.exists( file ) )
+		break;
+	    else
+		file = "";
+	}
+	if ( file.equals("") )
+	    return;
+	QFile f = new QFile( file );
+	if ( !f.open( QIODevice.IO_ReadOnly ) )
+	    return;
+	QTextStream ts = new QTextStream( f );
+	QSimpleRichText richText = new QSimpleRichText( ts.read(), font, browser.context(), browser.styleSheet(),
+				  browser.mimeSourceFactory(), body.height() );
+	richText.setWidth( p, body.width() );
+	QRect view = new QRect( body.topLeft(), body.bottomRight() );
+	int page = 1;
+	do {
+	    richText.draw( p, body.left(), body.top(), view, colorGroup() );
+	    view.moveBy( 0, body.height() );
+	    p.translate( 0 , -body.height() );
+	    p.setFont( font );
+	    p.drawText( view.right() - p.fontMetrics().width( new Integer(page).toString() ),
+			view.bottom() + p.fontMetrics().ascent() + 5, new Integer(page).toString() );
+	    if ( view.top()  >= richText.height() )
+		break;
+	    printer.newPage();
+	    page++;
+	} while (true);
+    }
+}
+
+void pathSelected( String _path )
+{
+    browser.setSource( _path );
+	Iterator it = mHistory.values().iterator();
+	boolean exists = false;
+	while (it.hasNext()) {
+	if ( ((String) it.next()).equals(_path) ) {
+	    exists = true;
+	    break;
+	}
+    }
+    if ( !exists )
+	mHistory.put( new Integer(hist.insertItem( _path )), _path);
+}
+
+void readHistory()
+{
+    if ( QFile.exists( QDir.currentDirPath() + "/.history" ) ) {
+	QFile f = new QFile( QDir.currentDirPath() + "/.history" );
+	f.open( QIODevice.IO_ReadOnly );
+    QTextStream t = new QTextStream( f );
+    while ( !t.atEnd() ) {
+        String item = t.readLine();
+		history.add((Object) item);
+    }
+	f.close();
+	while ( history.size() > 20 )
+	    history.remove( 0 );
+    }
+}
+
+void readBookmarks()
+{
+    if ( QFile.exists( QDir.currentDirPath() + "/.bookmarks" ) ) {
+	QFile f = new QFile( QDir.currentDirPath() + "/.bookmarks" );
+	f.open( QIODevice.IO_ReadOnly );
+    QTextStream t = new QTextStream( f );
+
+    while ( !t.atEnd() ) {
+        String item = t.readLine();
+		bookmarks.add((Object) item);
+    }
+	f.close();
+    }
+}
+
+void histChosen( int i )
+{
+    if ( mHistory.containsKey( new Integer(i) ) )
+	browser.setSource( (String) mHistory.get( new Integer(i) ) );
+}
+
+void bookmChosen( int i )
+{
+    if ( mBookmarks.containsKey( new Integer(i) ) )
+	browser.setSource( (String) mBookmarks.get( new Integer(i) ) );
+}
+
+void addBookmark()
+{
+    mBookmarks.put( new Integer(bookm.insertItem( caption() )), browser.context() );
+}
+}